Improvement in the manufacture of boxes



J. TROTTIER.

improvement in Manufacture of Boxes, &c.

Patented iune 1l,1872.

fig II.

flglli.

4M. H1070 -l/TIIOGRRPII'IG C41 MX/ SBORNE? PRO! 5] UNITED STATES JULES TROTTIER, OF HENNEBON, FRANCE.

IMPROVEMENT IN THE MANUFACTURE OF BOXES, &c.

Specification forming part of Letters Patent No. 127,811, dated June 11, 1872.

Specification describing certain Improve ments in the Manufacture of Boxes, Cases, and analogous articles, invented by J ULES T1101- TIER, of Hennebon, in the department of the Morbihan, in the Republic of France.

This invention relates to a system of closing, which acts as a spring simply by the arrangements given to the shape of the lid and to the construction of the body of the box.

Figure I is a view of a box embodying this invention, with lid detached ready for fitting. Fig. II is aview of same box completed. Fig. III isa lateral section, double the ordinary size of the box. Figs. IV and V are lateral sections of difi'erent types based upon the same principle.

The side A of the box is detached from the body at each end, so that a pressure acting in the direction indicated by the arrow, Fig. 3, has the efl'ect of causing it to yield in its entirety. Upon the pressure ceasing the flexibility of the metal immediately brings it back to its first position. I use this power to contribute to the closing of the lid-in short, it is the side of the box that constitutes the spring which is to keep it open or shut. The lid, which turns on a hinge, possesses a projection, 1), extending beyond the hinge. It is this projection which, acting as a cam on the side of the box, causes pressure during the pivoting of the lid until the moment when the lid, having attained the perpendicular, the cam no longer acts on the side; but that, on the contrary, it is this latter which, released from pressure, springs back to its first position and presses upon the hinge; thus the lid can no longer close without renewing the play just described, which necessitates a power quite sufficieut to keep the box open or closed.

This arrangement is susceptible of the greatest variation, (two modifications are given, Figs. IV and V of the drawing,) but as-in reality the principle does not vary, these arrangements may be indefinitely changed and applied to every kind of box to which this arrangedand operating substantially as and for the purpose hereinbefore set forth.

J ULES TROTTIER.

. Witnesses:

ALPHONSE BARAL, O. GUY. 

